[TYPO3-english] Could not analyse class:Tx_Fluid_Core_Widget_WidgetRequestHandler maybe not loaded or no autoloader

[Domi]

And here comes the backend after login error message:

PHP Runtime Notice: call_user_func() expects parameter 1 to be a valid 
callback, non-static method 
Tx_Extbase_Utility_Extension::configureModule() should not be called 
statically in /projects/t3lib/class.t3lib_loadmodules.php line 228

Thanks for reading,

Dominic